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Outline
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#define NX_SOURCE_CODE
#include "nx_api.h"
#include "nx_ip.h"
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_nx_ip_raw_packet_send(NX_IP *, NX_PACKET *, ULONG, ULONG)
Files
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SourceVuSTM32 Libraries and Samplesnetxduocommon/src/nx_ip_raw_packet_send.c
 
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/**************************************************************************/ /* */ /* Copyright (c) Microsoft Corporation. All rights reserved. */ /* */ /* This software is licensed under the Microsoft Software License */ /* Terms for Microsoft Azure RTOS. Full text of the license can be */ /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ /* and in the root directory of this software. */ /* */... /**************************************************************************/ ... /**************************************************************************/ /**************************************************************************/ /** */ /** NetX Component */ /** */ /** Internet Protocol (IP) */ /** */... /**************************************************************************/ /**************************************************************************/ #define NX_SOURCE_CODE /* Include necessary system files. */ #include "nx_api.h" #include "nx_ip.h" ... /**************************************************************************/ /* */ /* FUNCTION RELEASE */ /* */ /* _nx_ip_raw_packet_send PORTABLE C */ /* 6.1 */ /* AUTHOR */ /* */ /* Yuxin Zhou, Microsoft Corporation */ /* */ /* DESCRIPTION */ /* */ /* This function checks for raw packet send enabled on the input IP */ /* instance, then finds a valid interface for sending the packet. If */ /* those requirements are met it sends a raw IP packet out the */ /* appropriate interface. */ /* */ /* INPUT */ /* */ /* ip_ptr Pointer to IP control block */ /* packet_ptr Pointer to packet to send */ /* destination_ip Destination IP address */ /* type_of_service Type of service for packet */ /* */ /* OUTPUT */ /* */ /* status Completion status */ /* */ /* CALLS */ /* */ /* _nx_ip_route_find Find out-going interface and */ /* next hop */ /* nx_ip_packet_send Core IP packet send service */ /* tx_mutex_get Get protection mutex */ /* tx_mutex_put Put protection mutex */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* RELEASE HISTORY */ /* */ /* DATE NAME DESCRIPTION */ /* */ /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */ /* 09-30-2020 Yuxin Zhou Modified comment(s), */ /* resulting in version 6.1 */ /* */... /**************************************************************************/ UINT _nx_ip_raw_packet_send(NX_IP *ip_ptr, NX_PACKET *packet_ptr, ULONG destination_ip, ULONG type_of_service) { #ifndef NX_DISABLE_IPV4 ULONG next_hop_address = NX_NULL; /* Add debug information. */ NX_PACKET_DEBUG(__FILE__, __LINE__, packet_ptr); /* If trace is enabled, insert this event into the trace buffer. */ NX_TRACE_IN_LINE_INSERT(NX_TRACE_IP_RAW_PACKET_SEND, ip_ptr, destination_ip, type_of_service, packet_ptr, NX_TRACE_IP_EVENTS, 0, 0); /* Get mutex protection. */ tx_mutex_get(&(ip_ptr -> nx_ip_protection), TX_WAIT_FOREVER); /* Make sure a valid interface exists for the destination. */ if (_nx_ip_route_find(ip_ptr, destination_ip, &packet_ptr -> nx_packet_address.nx_packet_interface_ptr, &next_hop_address) != NX_SUCCESS) { /* Release protection. */ tx_mutex_put(&ip_ptr -> nx_ip_protection); /* There is not; return the error status. */ return(NX_IP_ADDRESS_ERROR); }if (_nx_ip_route_find(ip_ptr, destination_ip, &packet_ptr -> nx_packet_address.nx_packet_interface_ptr, &next_hop_address) != NX_SUCCESS) { ... } else { /* Yes, a valid interface exists. Send the packet! */ /*lint -e{644} suppress variable might not be initialized, since "next_hop_address" was initialized as long as return value is NX_SUCCESS. */ _nx_ip_packet_send(ip_ptr, packet_ptr, destination_ip, type_of_service, NX_IP_TIME_TO_LIVE, NX_IP_RAW, NX_FRAGMENT_OKAY, next_hop_address); }else { ... } /* Release mutex protection. */ tx_mutex_put(&(ip_ptr -> nx_ip_protection)); /* Return a successful status! */ return(NX_SUCCESS);/* ... */ #else /* NX_DISABLE_IPV4 */ NX_PARAMETER_NOT_USED(ip_ptr); NX_PARAMETER_NOT_USED(packet_ptr); NX_PARAMETER_NOT_USED(destination_ip); NX_PARAMETER_NOT_USED(type_of_service); return(NX_NOT_SUPPORTED);/* ... */ #endif /* !NX_DISABLE_IPV4 */ }{ ... }
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